Brand New "DIXCO" style hood mounted tachometer

You can't tell the difference when mounted. Unmounted the bottom does not have any mounting lugs. You will have to be creative in that part. I drilled two holes and attached two screws with a little epoxy to the inside of the housing. Once it's dry you can mount the tach. I took a piece of card stock an placed the tach over it poking the screws through the card stock. Then trace the outline of the tach and remove it. Now cut out the shape of the tach and place it on the desired spot on the hood. Now you have a template of where to drill your holes. It killed me to drill into my beautiful hood!!